It was inevitable, wasn't it? The Fifty Shades of Grey franchise has been a (eurgh) financial smash in both the world of books and film, and the series is closely associated with music thanks to the new Zayn and Taylor Swift collaboration and (eurgh) Ellie Goulding's 'Love Me Like You Do' so it was only a matter of time before someone decided that it should become a stage musical (EURGH).

The Sunreports that the series author, EL James, said: "Someone has asked me about (a musical).

But (unfortunately) that's not all! A source allegedly told the publication: "There has been massive hype around the books and producers know that the stage adaptation will sell out in minutes.

"Theatre bosses have been in talks with E.L and although these things can take years to plan they know it will be a big success.

"It could be the sort of thing that hen parties will flock to with all the steamy scenes and tourists will love it too."

Fifty Shades of Grey became a phenomenon in 2012, with the first film adaptation (starring Jamie Dornan and Dakota Johnson) released in 2015. The second film, Fifty Shades Darker, will hit cinemas on February 14.

It will be interesting to see if the series is still popular now that all the major hype has died down. If Darker does do the numbers, could we expect an official announcement of the musical's development later in the year?